ML20117L727

Proposed Tech Specs 4.2-2 Re Steam Generator non-repaired Tube Insp & 4.2-3 Re Steam Generator Repaired Tube Insp

ML20117L727
Person / Time
Site:	Kewaunee
Issue date:	09/05/1996
From:	WISCONSIN PUBLIC SERVICE CORP.
To:
Shared Package
ML20117L720	List: ML20117L717 ML20117L727
References
NUDOCS 9609170114
Download: ML20117L727 (5)

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ATTACHMENT 1 l i

I Letter from C. R. Steinhardt (WPSC)  :

To l Document Control Desk (NRC)  !

Dated September 5,1996 l

Ploposed Amendment 138b l

Affected TS Pages:

TS v TS 4.2-4 Table TS 4.2-2 Table TS 4.2-3

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LIST OF TABLES l

l TABLE TITLE l 1.0-1 . . . Frequency Notations 3.1-1 . . . WPS (136) Reactor Vessel Toughness Data 3.1-2 . . . Reactor Coolant System Pressure Isolation Valves i 3.5-1 . . . Engineered Safety Features Initiation Instrument Setting Limits 3.5-2 . . . Instrument Operation Conditions for Reactor Trip 1 3.5-3 . . . Emergency Cooling 3.5-4 . . . Instrument Operating Conditions for Isolation Functions 3.5-5 . . . Instrument Operation Conditions for Safeguards Bus Power l Supply Functions 3.5-6 . . . Accident Monitoring Instrumentation Operating Conditions for l Indication  !

4.1-1 . . . Minimum Frequencies for Checks, Calibrations and Test of Instrument Channels 4.1-2 . . . Minimum Frequencies for Sampling Tests 4.1-3 . . . Minimum Frequencies for Equipment Tests 4.2-1 . . . Deleted 4.2-2 . . . Steam Generator Non-Repaired Tube Inspection ,

4:2-311. :A 15 team Generator . Repaired TubelInspection l

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i Proposed Amendment No. 138b i TS v 09/05/96  !

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} e. If a tube does not permit the passage of the eddy current l inspection probe the entire length and through the U-bend, this

, shall be recorded and an adjacent tube shall be inspected. The

tube which did not allow passage of the eddy current probe .shall '

j be considered degraded.

1 The results of each sample inspection shall be classified into one of the following three categoriesh Tor 7nontrepsifsd[tsties actionitsh'a~11?be taken as described in' Table'4'.222TTorJrepaired j tubes ,j act,i oristis h sl 11beit'aken Latdes c ri. bed 2 i n ; Tabl e% 2s3 E~ ~ ' ~ ,

i j Cateaory Inspection Results >

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C-1 Less than 5% of the total tubes inspected are degraded l 4

tubes, and none of the inspected tubes are defective.

B.

$ C-2 One or more tubes, but not more than 1% of the total tubes inspected are defectite, or between 5% and 10% of

the total tubes inspected are degraded tubes. ,

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C-3 More than 10% of the total tubes inspected are degraded i tubes or more than 1% of the inspected tubes are j defective.

NOTE: In all inspections, previously degraded tubes must exhibit .

significant (>10%) further wall penetrations to be included i in the above percentage calculations. ,

3. Inspection Freouencies The above required in-service inspections of steam generator tubes shall be performed at the following frequencies: P

a. In-service inspections shall be performed at refueling intervals  ;

not more than 24 calendar months after the previous inspection. I If two consecutive inspections following service under AVT conditions, not including the pre-service inspection, result in all inspection results falling into the C-1 category; or if two consecutive inspections demonstrate that previously observed degradation has not continued and no additional degradation has occurred, the inspection interval may be extended to a maximum of once per 40 months.

b. If the results of the in-service inspection of a steam generator conducted in accordance with Table 4.2-2 fall in Category C-3, the inspection frequency shall be increased to at least once per 20 months, The increase in inspection frequency shall apply until a subsequent inspection meets the conditions specified in 4.2.b.3.a and the interval can be extended to a 40-month period.

i Proposed Amendment No. 138b l TS 4.2-4 09/05/96 i

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TABLE TS 4.2-2 .

STEANGENERATORN0$REPAIREDTUBEINSPECTION ,

IST SANPLE INSPECTION 2ND SANPLE INSPECTION 3RD SANPLE INSPECTION Sample Size Result Action Required Result Action Required Result Action Required A minimum of C-1 None N/A N/A N/A N/A S Tubes per S.G. C-2 Plug or repair C-1 None N/A N/A defective tubes and inspect additional 2S C-2 Plug or repair C-1 None tubes in this S'G~ (2) defective tubes and inspect additional 4S C-2 Plug or repair tubes in this S.G. (2) defective tubes C-3 Perform action for C-3 result of first sample C-3 Perform action for C-3 N/A N/A result of first sample C-3 Inspect all tubes in The other None N/A N/A this S.G., (2) plug or S.G.'s are repair defective tubes C-1 and inspect 2S tubes in the other S.G. (2) Some Perform action for C-2 N/A N/A S.G.'s C-2 result of second Prompt notification of but no sample the Commission. (1) additional S.G. are C-3 Additional Inspect all tubes in N/A N/A S.G. is each S.G. and plug or C-3 repair defective tubes. Prompt notification of the Commission. (1) (2)

S=6%/n Where n is the number of steam generator s inspected during an inspection.

Notes: 1. Refer to Specification 4.2(b)(6)(c)

2. As allowed by TS 4.2.b.2.d, the second and third sample inspections during each inservice inspection may be less than the full length of each tube by concentrating the inspection on those areas of the tube sheet array and on those portions of the tubes where tubes with imperfections were previously found.

PAGE 1 0F 1 Proposed Amendment No. 138b 09/05/96

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e TABLEjTS?4!23 STEANGENERATOREREPAIREDlTUBEl INSPECTION ,

IST SANPLE? INSPECTION 2NDTSANPLEJ: INSPECTION Sainpl6751zs Result AstionfRiduiFed Result Adtion Rsquifed A;niihimum ofL:.20%i bf C!1 Nond N/A N/A Repaired-Tubes 7.(1)

P W defectIVejrepaired C41 None tubes andtinspectiall C;2 remaining.:. repaired tubes Plug..d. efective7epaired tubes in/this:S.Gi C-3 Perfo'rm' actioni for: C23 result of first:Tsample C-3 Inspect'sll): repaired. tubes The other None inLth.is S.G., plug S.G. jis:: C-1 defective tubes and inspect"20% of the repaired tubesiin the other S.G; Theiother Perform actionifor?C-2 S.G..;is'C-2 result of:first ; sample Notificationsto NRC pursuantato:50.72(b)(2)(1) of:101CFR~Part 50 TheJ.other Inspect -~all' repaired)lt'ubes S.G.~is.iC-3 in each S.G.-an'diplug defective'tubesV ~

• Notification.to NRC T pursuantito;50.72(b)(2)(1)

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ofM 0;CFR Partis 0 " ~~~~ ~

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PAGEll?0Fjl Proposed Amendment No. 138b l 09/05/96

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